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3 years ago

Which questions below could appear in a dichotomous key for fish? Check all that apply.

Biology

1 answer:

jarptica [38.1K]3 years ago

6 0

Answer:

Does the specimen have spots on its body?

Does the specimen have more than three gills?

Does the specimen often eat shrimp instead of other fish?

Explanation:

those are the answeres exept the last one

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A scientist crossed a tall pea plant with a short pea plant. Of the offspring, 13 were tall and 12 were short, write the ratio o

In-s [12.5K]

Answer:

Tall offsprings: 13/25

Short offsprings: 12/25

Explanation:

According to this question, a cross between a tall pea plant and a short pea plant gives rise to the following:

13 tall pea offsprings

12 short pea offsprings

This means that a total of (13 + 12) = 25 offsprings were produced by this cross. To get the ratio of each phenotype to the total number of offspring, we say the number of each phenotype (tall or short) / total offspring the produced.

That is;

Tall offsprings: 13/25

Short offsprings: 12/25

In percentage, this can be represented as:

Tall offsprings: 13/25 × 100 = 52%

Short offsprings: 12/25 × 100 = 48%

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3 years ago

A star produces energy by:

Andreyy89

Answer:

Explanation:

I think... sorry if I am wrong

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3 years ago

What do organisms use 90% of their energy/food for and what happens to the other 10%?

stira [4]

Explanation:

Ten Percent Rule: What happens to the other 90% of energy not stored in the consumer's body? Most of the energy that isn't stored is lost as heat or is used up by the body as it processes the organism that was eaten

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3 years ago

In the late 1960s, robert paine conducted landmark studies on diversity in the rocky intertidal zone comparing the species diver

ohaa [14]

<span>The absence of the predator in the experimental plots led to a rise in population of the two species hence suppressing the other species since they were the prey of the Sea stars. But when the sea stars were present, they maintained a balance in the species diversity by feeding on Mussel and Barnacle species.</span>

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3 years ago

Ron is running an experiment to see if certain sounds can improve memory. While testing the subjects’ memory, Ron unintentionall

Zigmanuir [339]

The answer is A!
Ron is showing an invalid experimental placebo in this experiment due to the positive response.

goodluck, :)

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3 years ago